diff options
Diffstat (limited to 'qemu/crypto/random-gnutls.c')
-rw-r--r-- | qemu/crypto/random-gnutls.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/qemu/crypto/random-gnutls.c b/qemu/crypto/random-gnutls.c new file mode 100644 index 000000000..04b45a8f8 --- /dev/null +++ b/qemu/crypto/random-gnutls.c @@ -0,0 +1,43 @@ +/* + * QEMU Crypto random number provider + * + * Copyright (c) 2015-2016 Red Hat, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, see <http://www.gnu.org/licenses/>. + * + */ + +#include "qemu/osdep.h" + +#include "crypto/random.h" + +#include <gnutls/gnutls.h> +#include <gnutls/crypto.h> + +int qcrypto_random_bytes(uint8_t *buf, + size_t buflen, + Error **errp) +{ + int ret; + + ret = gnutls_rnd(GNUTLS_RND_RANDOM, buf, buflen); + + if (ret < 0) { + error_setg(errp, "Cannot get random bytes: %s", + gnutls_strerror(ret)); + return -1; + } + + return 0; +} |